AMD Radeon RX590 8 GB GDDR5

The fastest from Polaris line. Faster than a standard Radeon RX580.

Requires at least macOS Mojave 10.14.4 or later. Works great also with macOS Catalina,  Big Sur and Monterey.

System requirements:

- Apple Mac Pro 4,1 (2009) or Mac Pro 5,1 (2010-2012)
- installed macOS 10.14.4 (Mojave) or newer, macOS 10.13.4 (High Sierra) also supported but with lower performance
- native support by macOS Mojave/Catalina/Big Sur/Monterey, no drivers needed

Key features:

- compatible with macOS and Windows (via BootCamp)
- supports Apple boot screen (gray screen with Apple logo on startup) on all ports (also on 4K displays)
- uses internal Mac Pro power supply
- supports PCI Express 2.0 link under macOS and Windows
- supports five displays simultaneously: 2x DisplayPort 1.4, 2x HDMI 1.4 (2.0 under Windows), 1x DVI-D dual-link
- supports 4K@60Hz via DisplayPort or 4K@30 Hz via HDMI and DVI ports
- supports OpenGL, OpenCL and Metal in applications and games
- allows Windows 8/8.1/10/11 installation in UEFI mode
- allows an upgrade to macOS Mojave 10.14.6, macOS Catalina 10.15.7, macOS Big Sur 11.7.2, macOS Monterey 12.0.1 or later
- supports sound via HDMI and DisplayPorts under macOS

Technical specification:

- graphics processor clock: 1560 MHz
- memory speed: 2000 MHz
- amount and type of memory: 8 GB GDDR5
- bus width: 256-bit
- bus: PCI-Express 2.0 x16 (5.0 GT/s)